Nothing matters more than the safety rating on your helmet. But with so many acronyms — DOT, ECE, Snell, FIM — most riders don’t know what they mean or how they differ.
This guide breaks each one down in simple terms so you know exactly what you’re buying and why it matters.
1. DOT — The U.S. Minimum Standard
DOT stands for Department of Transportation FMVSS 218.
Key Points
✔ Mandatory in the U.S.
✔ Basic impact testing
✔ Testing is manufacturer-certified (not independent)
✔ Wide range of quality between brands
Takeaway: DOT is the minimum — but not the gold standard.
2. ECE 22.06 — The New Global Standard
ECE helmets undergo strict independent lab testing.
Why ECE 22.06 Is Better
✔ More impact points tested
✔ Rotational force measured
✔ Stricter penetration testing
✔ Mandatory visor testing
✔ Mandatory shell deformation tests
ECE is preferred by most experts because it reflects real-world crash forces.
3. Snell — The High-Impact Standard
Snell helmets are voluntarily submitted for intense testing.
Snell Advantages
✔ Harder impact testing
✔ More linear tests
✔ Higher energy resistance
✔ Great for track riders
However, Snell testing sometimes favors stiffer shells, which may not be ideal for all crash types.
4. FIM — The MotoGP-Grade Standard
FIM is the highest standard on earth, created for professional racing.
Why FIM Helmets Are the Safest
✔ Extensive rotational force measurement
✔ Extreme high-speed impact testing
✔ Shell flex + absorption testing
✔ Used in MotoGP, WSBK, MotoAmerica
If you want the safest helmet available, choose FIM.
Examples at DMG:
Which Rating Should You Choose?
For Street Riders
- ECE 22.06
- DOT (supplemental)
For Canyon & Sport Riders
- ECE 22.06 or Snell
For Track Riders
- FIM (best)
- Snell is also widely accepted
Final Thoughts
Safety ratings aren’t the whole story — but they matter more than anything else. No rating can protect you if the helmet doesn't fit correctly, but choosing a highly-rated helmet significantly improves your chances in a crash.
At DMG Motorsports, every helmet we stock is hand-selected to meet the highest standards of safety and performance.